A body slides due north on a horizontal surface

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A body slides

10\,\text m

due north on a horizontal surface. It is simultaneously acted upon by two constant horizontal forces:

5\,\text N

due east and

8\,\text N

due north. Identify which force does zero work during the motion and state the reason in one sentence.